Amorphous wire material is a new type of magnetically sensitive material. The micro-magnetic sensor based on amorphous wire material shows its comprehensive advantages of low cost, small size, low power consumption, and fast response. Compared with the mature and large number of market, the sensor used has the advantages of small hysteresis, fast response, high resolution, high sensitivity, and low power consumption. Miniature magnetic sensors made of amorphous wires have been widely used in the medical device industry.
Micro-magnetic sensor is an important part of medical electromagnetic positioning system. Its performance directly affects the positioning accuracy of the system. Due to the AC magnetic field signal emitted by the induction system, the sensor is required to be as small as possible. The diameter of various types of sensors is generally within 1mm. The length is within 1cm, while ensuring sufficient sensitivity, so it is necessary to use extremely fine enameled wire to wind the coil, and at the same time use the amorphous wire material with high permeability as the magnetic core, which puts high requirements on the design and production process of the sensor. In addition, the miniature magnetic sensor is used as a consumable for one-time use and a large amount.
Amorphous alloy micro-magnetic sensors are not only used in medical electromagnetic positioning systems. The characteristics of small size and resistance to occlusion make it widely used in other medical and scientific research fields, such as oncology, tissue biopsy, fluid extraction, and radiotherapy to track the needle tip position; it is very broad in terms of renal nerve intervention, stent and drainage tube placement, tracking guide wires and catheters in auxiliary aortic aneurysm surgery, and ultrasound image fusion, etc. Market prospects.
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